<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        *{
            margin: 0 auto;
            padding: 0;
        }
        body{
            background-color: #c3c3c3;
        }
        .box{
            width: 300px;
            height: 400px;
            background-color: white;
            margin-top: 20px;
            border-radius: 10px;
            overflow: hidden;
        }
        .box1{
        width: 80%;
        height: 50%;
        background-image: url("img/erji.png");
        background-repeat: no-repeat;
        background-size: cover;
        border-radius: 10px;
        margin-top: 20px;
        border: 1px dotted #56b1e8;
        }
        .box2{
            width: 80%;
            height: 20%;
        }
        p{
            font-size: 20px;
            font-weight: bold;
            color: #f36b6b;
            margin-top: 20px;
        }
        button{
            width: 80%;
            height: 12%;
            background-color: #25d625;
            border: none;
            color: white;
            border-radius: 10px;
            text-align: center;
            margin-top: 20px;
            margin-left: 30px;
        }
    </style>
</head>
<body>
<div class="box">
    <div class="box1"></div>
    <div class="box2">
         <h3 style="margin-top: 20px">无线蓝牙降噪耳机 高品质Hi-Fi立体声</h3>
        <p>￥399</p>
    </div>
    <button>加入购物车</button>
</div>
</body>
</html>